Looks as though he's already becoming patchy in those areas. 
It should become more noticeable in another 6 weeks, give or take a little. 
Not only are they young still (females take a little more time to develop their defined penciling), but Partridge cockerels are supposed to look the way yours does at that age.
~Alex
It should become more noticeable in another 6 weeks, give or take a little. Not only are they young still (females take a little more time to develop their defined penciling), but Partridge cockerels are supposed to look the way yours does at that age.
~Alex
